Siemens ED43B100L 100A 3P 480V Circuit Breaker | AmpState

Meet the Siemens ED43B100L, a purpose-built circuit breaker designed to deliver reliable protection in panelboards, load centers, and broader electrical distribution networks. This 3-pole unit handles 100 amps at a robust 480V, making it a trusted choice for three-phase systems found in commercial and light industrial environments.

• Part Number: ED43B100L
• Manufacturer: Siemens
• Product Type: Circuit Breaker
• Amperage: 100 A
• Poles: 3
• Voltage: 480 V
• Applications: Panelboards, load centers, and electrical distribution
• Retrofit & Maintenance: Supports consistent part numbers for easy replacement, inventory control, and planned maintenance

Why this ED43B100L stands out: its three-pole design provides synchronized protection across all phases of a 480V distribution network, helping prevent faults from cascading and improving overall system reliability. Built for compatibility within Siemens-based electrical ecosystems, it ensures straightforward integration with existing gear and downstream devices, reducing installation time and potential compatibility hiccups during upgrades or expansions.

Ideal use scenarios include:

• Upgrading or expanding commercial panelboards that rely on 3P 480V protection
• Maintenance projects where a specific ED43B100L part number must be kept on hand for quick, accurate replacements
• New installations in facilities that already rely on Siemens protective devices to maintain a cohesive, easy-to-service distribution network

AmpState proudly offers the Siemens ED43B100L to support retrofit and replacement initiatives. If you need help verifying fit or compatibility with your panel or distribution setup, send us a message and we’ll help confirm the correct match for reliable, compliant operation.